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This is a reminder to check your riving knife nuts on these saws often. This goes for the shark knife, modified, shop made or factory guard. I have had one customer that had his nuts loosen up somehow and the knife made contact with his blade.
Here is his first email after he had placed an order for a new knife.
You might be interested in why I need a new riving knife. This weekend I was making a small cut with my cross cut sled. In one instant I saw a spark, heard a noise and had pain in my neck. I went to inspect my neck and found a few cuts, but nothing serious. I figured I hit something in the wood and maybe knocked some teeth off the blade. I went back to the shop and was inspecting the blade when I realized the riving knife was missing (it's still AWOL) and saw some curls of metal, which caused the cuts on my neck. I figure the nuts holding the knife came loose over time and the knife slipped down onto the blade. A few curls were shaved off and then the knife was launched. I'll be using lock washers on the new knife.
I sent him a new knife and now supply lock nuts on all Ryobi and like riving knives and Shark Guard. If you want these on your's the size is 5/16 18. Any local hardware store should carry these. Probably even Wally World.
Remember, you can never check your nuts too often. I think there may be a Shark Knife in orbit around the earth now.
Here is his first email after he had placed an order for a new knife.
You might be interested in why I need a new riving knife. This weekend I was making a small cut with my cross cut sled. In one instant I saw a spark, heard a noise and had pain in my neck. I went to inspect my neck and found a few cuts, but nothing serious. I figured I hit something in the wood and maybe knocked some teeth off the blade. I went back to the shop and was inspecting the blade when I realized the riving knife was missing (it's still AWOL) and saw some curls of metal, which caused the cuts on my neck. I figure the nuts holding the knife came loose over time and the knife slipped down onto the blade. A few curls were shaved off and then the knife was launched. I'll be using lock washers on the new knife.
I sent him a new knife and now supply lock nuts on all Ryobi and like riving knives and Shark Guard. If you want these on your's the size is 5/16 18. Any local hardware store should carry these. Probably even Wally World.
Remember, you can never check your nuts too often. I think there may be a Shark Knife in orbit around the earth now.
: I had this happen with the shims on my 'riving knife' (in quotes because I have the BT20R, so you know the knife is just a joke) and I found out later when i saw the shards of the shims inside the saw-blade box.
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